Cerium(III) iodide
| Names | |
|---|---|
| IUPAC name
Triiodocerium
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| Other names
Cerous triiodide, Cerium triiodide
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| Identifiers | |
3D model (
JSmol ) |
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ECHA InfoCard
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100.029.299 |
| EC Number |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| CeI3 | |
| Molar mass | 520.829 g·mol−1 |
| Appearance | yellow solid[1][2] |
| Melting point | 766 °C,[1] 752 °C[2] |
| soluble[2] | |
| Solubility in acetone | soluble[2] |
| Structure[1][3][4] | |
| PuBr3 | |
| 8-coordinate bicapped trigonal prismatic
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cerium(III) iodide (CeI3) is the compound formed by cerium(III) cations and iodide anions.
Preparation
Cerium metal reacts with iodine when heated to form cerium(III) iodide:[2]
- 2 Ce + 3 I2 → 2 CeI3
It is also formed when cerium reacts with mercury(II) iodide at high temperatures:[2]
- 2 Ce + 3 HgI2 → 2 CeI3 + 3 Hg
Structure
Cerium(III) iodide adopts the
bicapped trigonal prismatic Ce3+ ions.[1]
Uses
Cerium(III) iodide is used as a pharmaceutical intermediate[5] and as a starting material for organocerium compounds.[2]
References
- ^ ISBN 978-0-08-037941-8.
- ^ ISBN 9780471936237.
- ^ ISBN 978-0-19-965763-6.
- ^ .
- ^ "7790-87-6 - Cerium(III) iodide, ultra dry, 99.9% (REO) - Cerium triiodide - 13641 - Alfa Aesar". alfa.com. Retrieved 2017-09-19.